report on their website on Friday, Politico pointed to conservative websites Washington Free Beacon and Breitbart.com for flagging the remarks on MSNBC and tweets where Williams allegedly mocked Romney's wealth.

"Regrettably, an unacceptable number of Joe Williams's public statements on cable and Twitter have called into question his commitment to this responsibility," founders John Harris and Jim VandeHei wrote in a memo to Politico staff. "His comment about Governor Romney earlier today on MSNBC fell short of our standards for fairness and judgment in an especially unfortunate way."

"This appearance came in the context of other remarks on Twitter that, cumulatively, require us to make clear that our standards are serious, and so are the consequences for disregarding them. This is true for all POLITICO journalists, including an experienced and well-respected voice like Joe Williams."

"POLITICO journalists have a clear and inflexible responsibility to cover politics fairly and free of partisan bias," they added.

According to The New York Times, Romney has appeared on Fox & Friends 21 times in the last year alone.

(h/t: Mediaite)